Stump-extractor.



A. GRANLUND. l STUMP EXTRAGTOR. APPLICATION FILED MAY 2, 1914.

Patented Oct. 6, 1914.

2 SHEETS-SHEET 1.

A. GRANLUND. STUMP BXTRACTOR. APPLICATION FILED MAY 2, 1914.

1,112,998.- Patena oet. 6, 1914.

2 SHBETS*SHEBT 2.

gnou/woz jdd/f 62am Wil/weones u A) fe S A I W ADOLF GRAN LUN D, OFESCANAIBA,y MICHIGAN.

sTUMP-EXTRAoToR.

Specication of Letters Patent.

Patented Oct. 6,1914.

Application tiled May 2, 1914'. Serial No. 835,993.

To all whom 'it may concern Be it known that l, ADoLF GRANLUND, acitizen of the Kingdom of Sweden, residing at Escanaba, in the county ofDelta and State of Michigan, have invented certain new and usefulImprovements in Stump- Extractors, of which the following is aspecification.

The present invention relates to improvements in stump extractors, theobject in view being to provide a simple and compact structure of thischaracter designed to facilitate manipulation of the same and soarranged as to afford a maximum amount of power for extracting purposes.

.ln carrying out the invention i provide in combination with a cable orsimilar flexible member, one end ot' which is adapted to be connected oranchored to stationary object, a movable member in' the form of arunning pulley operably connected to the stump to be extracted andaround which the cable passes, the other end of said cable being securedto tension means also coperating with the cable intermediate the pulleyaforesaid and the stationary member and embodying actuating meanstherefor to cause movement of said tension means toward the stationaryobject and thereby exerting tension through the running pulley on thestump to be extracted.

A still further object in mind is the provision of tension means ashereinbefore mentioned of a special character embodying a toothed drumabout which the cable is 4wound and which is mounted in a frame throughwhich said cable passes, together with actuating means for the drum forimparting rotation to the same to cause the tension means to move on thecable, when said cable is wound around the drum in either direction. y

These and such other objects as may hereinafter appear are attained bythe novel. construction, combination,` and arrangement of parts to behereinafter specifically described and claimed.

Reference will now be had to the accompanying drawings forming a part ofthis specification` wherein:

Figure 1 is a perspective view of an apparatus embodying my invention inposition for performing its extracting function. Fig. 2 is a sideeleva-tion of the device. Fig. 3 is a top plan view. Fig. 4 is alongitudinal sectional view through the tension means on .paratus andreferring to the the line 4-41 of Fig. 3. Fig. 5 is a transversesectional view on the line 5-5 of Fig. 3, showing the cable partlybroken away; and Fig. 6 is a perspective view showing details of theactuating means' for the toothed drum of the tension means of thisdevice.

Throughout the following detail description, and on the several figureso1 the drawings, similar parts are referred to by like referencecharacters. y

Specifically describing my extracting apdrawings, the numeral ldesignates a cable or similar flexible member, one end of which isconnected to a stationary object 2 located 4near the stump 3 which is tobe extracted. The cable l passes about a movable member in the form of arunning pulley et which is operably connected to the stump and saidcable at its other end is positively secured to the frame 5 of thetension means or mechanism of this device now to e more particularlydescribed.

As most clearly shown in Figs. l and 5 of the drawings, the .tensionmeans just mentioned is interposed between the pulley 4 and thestationary object 2, the cable 1 passing about a toothed drum 6 mountedupon the vertical axis 7 between laterally projecting spaced arms 8 ofthe frame 5.

Referring particularly to Fig. 5 theframe 5 consists of oppositeU-shaped arms orv members 5 and 5" each of which has an openingtherethrough as indicated at 9 and 9 and when the cable is in operableposition, starting from the end secured to the stationary object 2, itpasses through the opening 9 around the toothed drum 6 several times andfrom thence through the opening 9 about the pulley 4 and back again tothe U-shaped arm 5 of the frame to which it is positively securedforming a stress exerting loop at this end. Between spaced arms 10extending from the frame at the side opposite to the arms 8 betweenwhich the drum 6 is mounted, is pivoted an operating lever 1l, the pivot12 passing through the bifurcated terminal of said lever as shown mostclearly in Figs. l and 4.

Between the bifurcate ends of the lever 11 is mounted at one side ahooked paw] 18, the hooked terminal of which is adapted to engage withthe teeth 14 formed on the pe- 110 ripheral edge of said drum while atthe opposite side`is similarly mounted a stop pawl the` out.

The pulley 4 having been operably con- V nected to the stump 3 in anydesired manner the lever 11 is oscillated to and fro so as to cause thehooked pawl 13 to rotate the drum 6 in the direction indicated by thearrow in Fig. 3. The stop pawl 15, when the lever is moved ina directiondrawing the pawl 13 toward the pivot of said lever, rides on the teeth14 on the drum until the limit of movement of said lever is reached whenit interlocks with the drum and enables the pawl 13 to further actuatesaid drum upon imparting to said lever a similar movement after havingrengaged the pawl 13 with teeth far` ther around on the'` eriphery ofsaid drum. Movement of the rum as just described causes the cable 1 tobewound thereupon in one direction and to be unwound there-v from anequal extent in the other direction, which action imparts movement tothe tension means man obvious manner, and by reason of the fact that oneextremity of said until the cable is secured to the frame of the tensionmeans, tension is imparted to the pulley 4, tending to cause said pulleyto move in a similar vdirection toward the stationary object 2. Byreason of the winding of the cable about the drum 6 and the leverageafforded by the lever 11 a considerable power is afforded vthe deviceenabling the stum to be extracted and it will be obvious to t oseskilled in this art that the travelof the tension means along the cablewill be twice as fast or as great as the corresponding movement of thepulley 4 in the same direction. As long as the lever is oscillated themovement of the tension device will take place stump has been extractedand when it is a ain desired to set the apparatus in positionv or asubsequent extracting operation the pawls'l and 15 areadapted to be heldout of engagement with the teeth of the drum 6 by means ofhooks 17?- and18 secured at opposite sides of the lever 11 at 17 and 18 respectively.Each pawl for this purpose is provided with an eye 19, 19 in which therespective hooks are engaged as shown most clearly in dotted lines inFig.

3 of the drawings. When the pawls are thus disengaged from the drum 61the lever 11 is moved into a position in alinement with the i 'arms 8 ofthe frame 5 anda set screw or similar lockingmember 20 is screwed intoengagement ,with a recess 21 in a bifurcate terminal of said leverrwhich recess is shown in Figs. 4 and .6 respectively. By exerting apull upon the pulley 4'the tension means or mechanism will be moved byunwinding of the cable in the direction in which the pull on the pulleyis exerted. The pawls are then allowed to engage with thedrum again andthe lever 11 unlocked so that the actuation of the devicevmay beaccomplished in a manner described hereinbefore. The lever 11 preferablyconsists of the socket 11 and the removable handlell which latter may beof any suitable length depending upon the amount of leverage which isrequired for operation of the device.

As a matter of convenience, I preferably provide eyes 22 and 23 atopposite sides of the lever 11 in which the hooks 17 and 18, may bedisposed when in inoperative position and during the use of the ratchetmechanism. l also specially form the spring 16 with bent terminals andthese terminals are adapted to coperate with the eyes 19, 19 of thepawls 13 and 15 respectively so as to limit movement of the lever inopposite di'- rections, said spring and eyes mentioned thus performing adual function.

It will be apparent to those skilled in lthis art that the inventionhereinbefore described may readily be used for various other purposesthan that incidental to the extracting of' stumps and in fact whereverit is desired to employ power mechanism for imparting tension to objectsas when lifting, drawing and yin similar operations. In addition to thisfact it will be understood that changes may readily be made in thedetails of construction of this device and particularl of thetension-means comprehended by the oregoing description withoutdeparting` from the spirit ofthe invention and within the scope of theclaims hereto appended.

Having thus described my invention, what I claim as new'is:

1. -In an extracting device of the class described, thel combination ofa cable adapted to be fixed at one end portion toy a stationary object,tensioning means engaging an intermediate portion of the cable, theother end portionofthe cable being fixed to the tensioning means to forma stress exerting loop beyond the tensioning means, and means foractuating the tensioning means for causing the same to travel towardthe` stationary object.

2. In an extracting device of the class described, the combination of acable adapted to be fixed at one end portion to a stationary object,tensioning means engaging an intermediate portion of the cable, theother end portion of the cable being `fixed to the tenl being xed tosioning means to form a stress exerting loop beyond the tensioningmeans, a pulley about Which said loop extends, means of connection forthe pulley with the object to be eX- tracted, and means for actuatingthe tensioning means for causing the same to travel along the cabletoward the stationary object.

3. In an extracting device of the class described, the combination of acable adapted to be connected at one end to a stationary object, amovable member operatively connected to the object to be extracted andaround which the cable passes adjacent its other' end, tensioning meansto which the last mentioned end of the cable is connected whereby toform a stress exerting loop, said tensioning means embodying a framethrough which the cable passesintermediate the movable member and thestationary object, and means for actuating said tensioning means tocause the same to move on the cable toward a stationary object andthereby exert tension upon the movable member aforesaid.

4. ln an extracting device of the class described., the combination of acable adapted to be fixed at one end portion to a stationary object.tensioning means comprising a capstan engaging an intermediate portionof the cable, the other end portion of the cable the tensioning means toform a stress exerting loop beyond the tensioning means, and means foractuating the tension means for causing the same to travel toward thestationary object.

5. In an extracting device of the class described, the combination of acable adapted to be connected to a stationary object at one end, saidcable being connected with an object to be extracted, a drum engaging anintermediate portion of the cable, a frame in which the drum is mountedand to which the second `end of the cable is connected, means foractuating the drum to cause the frame and drum to move along the cabletoward a stationary object, and means coact- 11 g with the lastmentioned means and locking the frame drum against movement toward theobject to be extracted when the drum is actuated by the actuating meansaforesaid, said locking means being releasable to permit free movementof the frame and drum on the cable away from the stationary object.

6. ln an extracting device of the class described the combination of acable adapted to be connected to a stationary object, means connectingthe cable to an ,object to be extracted, and tension means engaging anintermediate portion of the cable and comprising a frame havingapertures therethrough through which the cable passes, a drum mounted onsaid frame intermediate the apertures for said cable around which thecable is Wound, means for actuating said drum, comprising a leverpivoted to the frame, an actuating paWl carried by the lever forrotating the drum, and a locking member on said lever cooperating Withsaid drum for locking the same against movement in one direction.

7. In an extracting device of the class described, the combination Witha cable adapted to be connected to a stationary object at one end,tension means cooperating with said cable intermediate its length andoperatively connected to an object to be extracted, said tension meanscomprising a frame through which the cable passes, a pulley disposedintermediate the object to be extracted and the tension means and aroundwhich the cable passes in the form of a loop, the loop end portion ofsaid cable being connected to the frame aforesaid, a

toothed drum mounted in said frame abolitwhich the cable is wound, alever pivotally secured to said frame, an actuating paivl pivotallymounted on said lever and adapted to engage the toothed drum to impartrotation thereto upon oscillation of said lever, a locking pawlcooperating with the drum to hold the same at adjusted positions, andmeans for holding the paWls disengaged from the drum to permit freerotation of the same.

8. ln an extracting device of the class described, the combination witha cable adapted to be connected to a stationary object at one end,tension means cooperating with said cable at an intermediate point andoperatively connected to an object to be extracted, said tension meanscomprising a frame through which the cable passes, a pulley disposedintermediate the object to be extracted and the tension mears and aroundwhich the cable passes in the form of a loop adjacent its other end, theloo end of said cable being connected to the frame aforesaid, a tootheddrum mounted in said frame about which the cable is wound, a leverpivotally secured to said frame, an actuating paWl pivotally mounted onsaid lever and adapted to engage the toothed drum to impart rotationthereto upon oscillation or' said lever, a locking paWl cooperating withthe drum to hold the same at adjusted positions, means for holding thepawls disengaged from the drum to permit free rotation of the same, andindependent means for locking the lever against movement when the pawlsare disengaged from the drum. i

9. In an extracting device of the class described, the combination witha cable adapted to be-connected to a stationary object at one end,tension means coperating with said cable and operatively connected to anobject to be extracted, said tension gage the toothed which the cablepasses,

gaged from bers on the actuating paWl-and the locking VJ passes, one endof said cable being connected to the frame aforesaid, -a toothed drummounted in said frame about which the cable is Wound, a lever pivotallysecured to said frame, an actuating pawl lpivotally mounted on saidlever and adapted to enthereto upon oscillation of said lever, a lockingpawl cooperating With the drum to hold the same at adjusted positions,and spring tension means common to the actuating pawWl and `the lockingpaWl normally maintaining said paWls in engagement with the drum.

10. In an extracting device of the class described, the combination Witha cable adapted to be ccnnectedto a stationary obl ject at one end,tension means cooperating with said cable and operatively connected toan object to be extracted, said tension means comprising an aperturedframe through a toothed drum mounted in said frame and around which thecable is Wound, a lever for actuating the drum to cause movement of thetension means along the cable, an actuating pawl connected to the leverand coperating'with the drum to rotate the same upon oscillation of saidlever, a locking member carried by said lever and cooperating with thedrum to hold the same at adjusted positions, a spring mounted in saidlever and having its terminals bearing against the actuating pawl andthe locking member aforesaid to normally hold the same in engagementwith the drum,a hook member carried by the lever at each side of thesame and adapted to be engaged With the actuating paWl and the lockingmember respectively to hold the same out of and to thereby permit freerotation of said drum, a locking member mounted in the frame and adaptedto engage with the lever to lock said lever against movement relative tothe frame when the paWls are disen- Ithe drum, and abutment memwith saiddrum to impart rotation engagement With the drum member aforesaidadapted 'i to limit 'the' movement of the lever in leither direction. i

11. In an extracting device of the class' described, the combinationwith a cable adapted to be connected to a stationary object at one end,tension means cooperating cable andl operatively connected to an objectto be extracted, said tension means comprising an apertured framethrough which the cable passes, a toothed drum mounted in said frame andaround vwhich the cable is wound,'a'lever for actuating the drum tocause movement of the tension means along the' cable, an lactuating pawlconnected to the lever and coperating with the'drum` to rotate the sameuponv oscillation of saidvlever, a locking member carried by said'leverand cooperating with the drumv to hold the `same at adjusted positions,a spring mounted in said lever and having it's terminals bearing againstthe ac- `tuating pawl and the locking member. aforethe same in"engagesaid to normally hold a hook member ca rment with the drum,

ried by the lever at each side of the same j to be engaged with theactuatand adapted ing paWl and the locking member respectively to holdthe same out of engagement v vith the drum to thereby permit freerotation of said drum, a locking member mounted in the frame and adaptedto engage with the lever to lock said Vlever against movement relativeto the frame when the pa-Wls are disengaged from the drum, and' abutmentmembers on the actuating pawl and the locking member aforesaid adaptedto limit the movement direction, said abutment members consisting ofeyes disposed to contact with the spring aforesaid upon movement of thelever fin either,direction, said hook members carried by the lever beingadapted to be engaged in the eyes aforesaid for holding v the actuatingpaWl and locking member out of engagement with the drum.

In testimony vvhereot1 I affix my signature in presence of twoWitnesses. Y ADOLF GRANLUND.

Witnesses:

PETER N. PETERSON, KARL HOGBERG.

of the lever in either

